Answer:
21%
Step-by-step explanation:
The formula to compute the annual rate of return is shown below:
= Annual net income ÷ average investment
where,
Annual net income equal to
= Annual revenues - annual expense
= $122,610 - $72,000
= $50,610
And, the average investment would be
= (Initial investment + salvage value) ÷ 2
= ($471,000 + $11,000) ÷ 2
= $482,000 ÷ 2
= $241,000
Now put these values to the above formula
So, the rate would equal to
= $50,610 ÷ $241000
= 21%